WW2 lost 'clickers' sought for 75th D-Day anniversary April 26, 2019 at 05:27AMhttps://https://bbc.in/2Wb7qT4 The clickers were used by WW2 paratroopers dropped behind enemy lines to detect allies in the dark.

The clickers were used by WW2 paratroopers dropped behind enemy lines to detect allies in the dark.

from BBC News - World https://bbc.in/2ZEffmu